Furnace



June 16, 1925.

FURNACE F. A. DAECHSEL i v I ,M

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F. A. DAECHSEL FURNACE l Filed Sept. 10, 1925 6 Sheets-Sheet 2 Julie 16, 1925. 1,542,219

F. A. DAECHSEL FURNACE Filed Sept. 10, 1923 V 6 Sheets-Sheet 3 ll/1,27%:l

FURNACE Filed Sept. 10. 1923 6 Sheets-Sheet 4 laf June 16, 1925.y1,542,219J4 F. A. DAECHSEL.

FURNACE Filed sept. 1o. 192s e sheets-sheet 5 6J @im Hmm/#ggwrm June 16,1925. 1,542,219

F. A, DAECHSEL FURNACE Filed Sept. l0, 1923 6 Sheets-Sheet 6 4 2/71 F y59 f f r III,

atented .lune 16, V1925.

enr-nur opere i FREDERICK AII'GUST p DAECHSEL, OF" OTTAXVAV ONTARIO,CANADA, ASSIGNOI-L': `Gli i THREE-FOURTHSJ; TGI: W-ILLIAM FBEEDERECKLPGVELL, 0F DTTAWA", ONTARIQ;

CANADA?.

FURNAGE.

i Application 'led .September 10g-1923;, Serial Nol` 661,954; l i

To allfwziom it may. concern.: y

it known that I, Fnnnnnioii AUGUST Diinoisnnja subjectief therKing ofGreat Britain, and resident" of the cityoif Ottawa, in the Province of"Ontario andDorninion ot' Canada,r have inventedrertain new and usefulIniproveinentsV in Furnaces, oifwhichj the following is acspyecifica-tionl `This invention relates', -to` improvementsin furnaces,and" more Vpartieularlyto fl'urnaces connectedqwith heatingsystems fordwellings, and-,the like.

The objects otthe Ainvention are to pro-- vide an improved "furnaceofthis character more particularlyadapted for hot Water heatingandinwhich.V anykind of uelcan be used withY economicaland 'satisfactoryrcsults.v l l Further objectsare the provision of an economy fuelfurnace in which a maximum of heat Will bevobtainedyvvith a mi-nimumoffuel. i Y

Still "further objects are the provision et a `furnace of!" thischaracter in which the several "parts" Willmore satisfactorilyl per-.tornrthe various, functions required-of them, and in which the severalparts are readily` accessible for examination and cleaningout; v

Tfet another Objectis the `provision of a `furnace otthis characterwhich canbe readily` adapted to an oilfburner.

filth the 'foregoing and other obl @Cts more full;r describedhereinafter in View, theinvention consists essentiallt7 of a furnaceembodyinof the several improvements as described in the presentispecification and'illustratedehy'- the accompanying drawings which formpart of' the same.' i n Referringnow to the drawings in'which likecharacters of reference indicate `cor respondingparts "in each iigure:

Figure l is a section on Vline 1-1`ofFig ure Figure 2 is a top" planfview of the` turnace. y p

Figure 3 isa section on line otFigurel. i* Y Figure et aplan View ofythe detachable revolvable top plate of thefurnace.

Figure `isaplan vieu7 ofthe iXed-aperturednplate on which the top platerevolves.

Figure 7'isa vertical section through` the hood, showing the cleaning;door open'.Y

Figure S is a frontelevation ofthe lhood ,with cleaningdoor`- closed;

Figure 9 is a front viewothe hoodwith cleaning door showing the Webs ito preveur Figure 6 "isa section on line 6-'-G of Fig- Figure isasimilar; view of." the hot water discharge pipeconnections.

Figure 16is afurther perspective detail oi theJ coldi` Water intakepipeconnections. Figure` 17 ,is ya section :on the line 17`-17 of Figurel. o

Figure 18 is a sectionalview of' the base 'platea p Figure 19 is ka planvi'eWof the baseplate, Iii the drawings,y A indicates nay-improvedfurnace as a Whole, comprisingr an outer cas an inner casing "`l1provided With a Water jacket l2, .the Water jacket and the` outer casingbeing. in spaced :relationship vto one another to for-m1 therebetween za chamber 13 for the Wasteproductsof combustion, including the smoke.

' It Will-benoted" in the above" construction that the sinner casingrllwith: Water *jacket-121 do not extend'the full` length `et this chamber9, as also hereinafter more fully described, being controlled bysuitable damper and diverting means.

Turning now to the construction of the furnace, 14 is a flue opening inthe casing 10 and communicating with the space or chamber 13 surroundingthe inner water jacket casing 11. Suitably connected to the opening 14is a smoke conduit 15, in turn connected to the main Hue or smoke stack.

16 is a suitably formed base for the casing members, here shown in theform of a circular tray provided with an opening 17 which is designedwhen necessary or convenient, according to the fuel used, to be plugged,and on which the tire burns. Should the furnace be required to burnliquid fuel, the plug 19 can be removed from this base plate and an oilburner arranged therein. i

The space 20 within the casing and above the base plate 16 constitutesthe heating chamber provided with a fire door 21, and slidably opera-bleand oppositely arranged ash doors 22 and 23.

24 are hot water tubes, a plurality of which are suspended from iaheader 25, in series of substantially circular formation one within theother, as more particularly illustrated in Figure 17.

This header 25 is of circular formation and is provided with a centralopening 2 and is supported within the inner casing on one side by meansof an arm 27 adapted to rest on water jacket 12 on the inside of thecasing 10 at a point in line with the top of the smoke outlet 14. On theother side the header is Supported by the hot water discharge pipe 29,connected thereto at 30 and extending outwardly through the casing 16,just above the top of the inner easing 11 and water jacket 12.

This construction, as aforementioned, leaves a space 9 in the top of theouter casing 10.

31 is a circular hood in the top of the furnace, registering with thecentral opening 26 in the header 25 and connected through a conduit 32with the smoke stack 33, the conduit 32 being provided with suitabledamper means 34, while the hood itself is provided with a slantwiseopening 35 in the form of a manhole provided with a swingingly mountedcleaning door 36 provided with smoke baffle means 37 formed thereon toprevent a leakage of smoke when the door is closed.

36 is a suitable stop on the top of the hood to prevent this door, whenopened, from swinging backwards beyond a certain point, while 39 aresuitable lugs on the door adapted to form hand grips for opening thedoor.

Arranged to form a top for the casing 1() is a circular plate member 40fxedly secured thereon and having a central opening therein 41, formedwith a suitable flange edge 42 adapted to vreceive therein the hood 31,and provided therearound with a plurality of spaced elongated openings43, as more particularly illustrated in Figure 5.

On top of this plate and adapted to embrace the outer edges thereon, asshown in Figure 1 at 44, is a revolving top plate 45 formed with acentral opening therein 46, through which extends the hood 31 and aroundwhich the plate is adapted to turn on suitable guideways 47 formed onthe plates 40 and 45. This revolving and detachable top plate, asillustrated in Figure 4, and in addition to the central opening 46adapted, as will be understood, to register with the opening 41 in theplate 40, and also with the opening 26 in the header 25, is providedwith an inspection door 48, hingedly mounted at 49 and provided withside lugs 50 adapted to engage with thumbscrews on the plate 45, wherebythe door is securely held in closed position. This door is formedsubstantially the same as the several openings 43 in the plate 40 and isthus, as the plate rotates, designed to register with each of theseopenings in turn, whereby the furnace can be inspected from the top tothe bottom, and' also cleaned at any point.

51 are spaced lugs on the revolving top 45, adapted to receivetherebetween a bar or otherwise to start the rotation of the top shouldit become stuck in any way through non-usage.

From the foregoing it will be seen that I have provided a furnace withan outer casing having an auxiliary flue and a main flue bothcommunicating with smoke stack 33, and that this casing is partly inspaced relationship to an inner casing or heating chamber 11 providedwith water jacket means 12 therearound. The whole is designed to t intoa base plate.

Further, the top of the casing is provided with a suitably aperturedplate designed to receive therein a revolving top provided with aninspection door adapted to register with the apertures in the .'ixed topplate. Through both the revolving plate and the top fixed plate extendscentrally a flue hood forming a. direct connection with the smoke stackand provided with suitable dan'iper means therein, and also having acleaning door with a smoke proof lid.

7e will now refer more particularly to the hot water heating elementswithin the furnace casing, as above mentioned, and. which have alreadybeen referred to as com prising a circular header 25 suitably supportedwithin the heating chamber in spaced relationship to the top andprovided with a central aperture 26 registering with the main flue orhood 31.

This header carries suspended therefrom a plurality of water tubes 24,cireularlyr ar- What I claim as my invention is:

1. A furnace comprising an outer casing, and an inner casing providedwith a Water jacket and spaced from the outer casing, and adapted, incombination, to form inner and outer heating chambers, a top plateprovided with a plurality of openings for the outer casing, a detachableand rotatably mounted cover adapted to fit on said top plate and havingdoor means therein designed to register with each of the openings in thetop plate, auxiliary flue means through said top plate and cover, dampermeans for said auxiliary flue means, Water heatingelements in the innerchamber, and Water intake and discharge means connected to said Waterheating elements and to the Water jacket, a main fine communicating withthe outer chamber, and baiie means for said iiue.

2. A furnace comprising an outer heating chamber, and an inner heatingchamber provided With a Water jacket, an apertured top plate having aplurality of openings and. a revolving cover formed With an inspectiondoor adapted to fit on said plate, Water heating means in the innerheating chamber, Water intake and discharge means for said heating meansand Water jacket, an auxiliary fiue through said top plate and cover,damper means for said flue, a main flue means communicating With theouter heating chamber, and means for directing the heat units into saidchamber, and baffle means in said chamber in combination with the mainflue.

3. A furnace of the character described, comprising an outer casing, anda heating chamber provided with a Water acket adapted to form with saidouter casing a second or outer heating chamber, a detachable revolvingtop with openings therein for the. furnace, .auxiliary flue meanstherethrough, a main flue for the outer heating chamber, means fordirecting the flow of heat units and smoke from the auxiliary flue tosaid outer chamber and then to the main flue, Water heating means in theinner chamber, cold Water intake and hot Water discharge means connectedto said Water heating means and to the Water jacket, Whereby Water iscirculated through the heating elements and Water jacket simultaneously.

4. In a furnace of the character described and iu combination, an outercasing, and an inner casing provided With a Water jacket and spaced fromthe outer casing, and extending to adjacent the top of the outer casing,whereby an inner heating chamber and an outer heating chamber of lesserlength than the outer casing are provided, a top plate having openingstherein vfor the outer casing and a revolving top having an inspectiondoor therein and adapted to lit on said top plate, an auxiliary fluethrough said cover and plate, fluid heating elements across the top ofsaid chambers and extending into the inner chamber and having a centralopening registering with the auxiliary flue, a main flue through theouter casing and communicating With the outer heating chamber adjacentthe top thereof, damper means in the main flue whereby, in combinationvvith baffle means for the main flue, the smoke and heat units aredirected from above said chambers into the outer chamber and into themain flue.

5. In a furnace of the character described and in combination, an outercasing, and an inner casing provided With a Water jacket and in spacedrelationship to the outer casing, said inner casing being of lesserlength than the outer casing, whereby, in combination with said outercasing, an inner heating chamber and an outer heating chamber areprovided, a fixed top plate for the outer casing having a plurality ofapertures therein and a central aperture adapted to receive an auxiliaryflue, a revolving cover adapted to fit on the top plate `and providedwith a central aperture to receive the auxiliary flue, inspection meansin the cover, and damper means for the flue, and cleaning door means insaid flue, and smoke confining Webs on said door, a circular headerhaving a central opening therein registering with the main iue andsupported across the top of the inner chamber, a plurality of Watertubes suspended in said header, cold Water intake and hot Waterdischarge means communicating with opposite sides of the header and theWater jacket respectively, a main flue in the top side of the outerheating chamber and extending through the outer casing to connect withthe auxiliary Hue, baiile means for said flue whereby, in combinationWith the damper means in the auxiliary liuc, the heat units and thesmoke are diverted to the outer chamber and then to the main flue.

G. In a furnace of the character described and in combination, an outercasing, and an inner casing provided with a Water jacket and spaced fromthe outer casing to form outer and inner heating chambers extendingpartially the length of the outer casing whereby a space is provided inthe outer casing above said chambers, a revolving top for the outercasing, main damper means for the outer chamber Jthrough the casing sideHuid, heating elements comprising a ceutrally apertured header having aplurality of Water tubes suspended therefrom for the inner chamber, andwater intake and discharge means connected to opposite sides of saidheader and to the Water jacket, web baille means in said tubes and saidheader, and smoke baffle means for the main flue.

Y. ln a furnace of the character described the combination With an outercasing provided. with a top plate having a plurality of aperturestherein and a` revolving cover said header, and a central opening in theformed with inspection means, adapted to register individually with theVapertures in said top plate,Y said plate and cover'having an` auxiliaryflue extending therethrough,l

an inner casing substantially shorter than the outer casing and providedwith-a water jacket in spaced relationship to the outer casing, wherebyan inner heating chamber and an outer heating chamber are provided,

'a main iiue in the side` of the outer casino' l5 connnunicating withsaid outer chamber, and smoke baille means for said flue, a water headeracross the top of said chamber, a plurality of water tubes suspendedtherefrom within the inner chamber, `webs formed in said tubes and websformed in said header designed to register in spaced relationship withthe webs in the tubes, water intake and discharge pipes connected to theheader and to the water jacket at opposite sides thereon, and dampermeans for the auxiliary Hue.

8. A furnace of the character described comprising, in combination, anouter casing, and an` inner casing spaced therefrom and provided with awater acket and designed to form, in combination with the outer casing,an inner chamber and an outer chamber of substantiallylesser length`than the outer casing, reyolving top means for the furnace adapted, incombination with a fixed apertured top plate provided with a pluralityof apertures and inspection means in the cover, to rovide cleaning andinspection means for the furnace, an auxiliary iue through the top plateand cover, damper means for said flue, a mainline communicating with theouter chamber and arranged at right angles to the auxiliary flue, smokebaille means in the outer chamber for said main flue, fluid* heatinoelements in they inner chamber comv v b v c n prislng a circular headerhaving a plurality of circularly arranged water tubes suspendedtherefrom, and means for supporting the header across the top of saidchambers, whereby a space is provided between the header and therevolving top, water baille means in said tubes and header, anddetachable screw cap means for the outer ends of said tubes, and coldwater intake and hot water discharge means connected to said header andtoI the water jacket.

9. A furnace of the character described comprising, in combination, anouter casing, and an inner casing provided with a water jacket andspaced from the outer casing to form in combination therewith an innerchamber and an outer chamber of Vsubstantially lesser length than theouter casing, a recessed base plate for said casing, and a fire plate insaid base, a header for the inner chamber, and means for supporting theheader, a topv plate with openings therein for the furnace', anauxiliary flue extending therethrough, and` ,a revolving co-ver adaptedto lit into said plate andi to rotate around said ilue, y said flueregistering with the central opening in the header, damper means for theflue, a main flue through the side of the outer casing, andcon'imunicating with the outer Chamb r adjacent the top thereof, andbaflie means for said flue, whereby on the auxiliary flue damper meansbeing operated the heat units from the inner chamber are diverted to theouter chamber and then to said main flue.

10. ln, a furnace of the character described, the combination, with anouter casing, of an inner heating` chamber rovided with a water jacketand spaced from said outer casing to form an outer heating chamber, saidchamber' being` substantially of lesser length than said casing, a topplate with a plurality of openings therein for the casing and arotatable cover with inspection means therein for said top plate, anauxiliary flue extending through the top plate and cover, a headersupported across the top of the inner chamber and formed with a centralopening having a plurality of water tubes arranged in spaced seriestherearound, web baffle means in said tubes and header, and water intakeand discharge means connected to the header and the water jacket, a mainfluegfor the `outer chamber, and smoke battle' means for said flue,whereby on the smoke and heat units being diverted from the auxiliaryflue they will circulate through the outer chamber and into the mainflue.

ll. In a furnace of the character described, the combination with anouter casing and a suitable base having a top plate and a revolvingcover plate, and an auxiliary flue through said plates, of an innercasing provided with a water jacket and adapted to form, in combinationwith the outer casing, an inner heating chamber' and an outer heatingchamber on each side of the water jacket, andV of substantially lesserlength than the outer casing, a header across the top of said chambers,and fluid heating elements from said header suspended within the innerchamber, whereby, in combination with the lire therein, the water insaid ele ments and the water jacket is heated, a main flue through theside of the casing, and communicating with the outer chamber, and smokebaihe means for said flue, damper means in the auxiliary Hue adapted todivert the heat units and smoke to the outer chamber whereby the waterin the water jacket is again heated, an inspection door in said coverand a plurality of apertures adapted to register individually with saiddoor in the top plate, and cleaning door means in the auxiliary' flue,cold water intake means connected to the header and the water jacket,

:lull

hot Water discharge means for the opposite In Witness Whereol:l I havehereunto set side of the hedenlancl hot Water intake iny hand in thepresence o tWo Witnesses.

means connecte to t 1e Water 'aclet Where- 1 by the Water circulatesthrough the; header FREDERICK AUGUST DALCHSEL' and the Water jacket tothe heating coils and Witnesses:

from the heating coils hack to the Water W. T. CUFFE ZURCI,

jacket. Y n I MARY B. REEVE.

